Sometimes serendipity rules. This playlist was generated randomly from the MixRemix Radio Free Culture Library. Great mix of jazz piano, progressive rock, and vocals.
Since all the music is Free Culture it is fine to post the songs with attribution. Here's a list of the albums these songs were drawn from including the duration of the album, the link, and the license. Each song also includes attribution in the filename. Free streaming. Free to download and share. Also these songs are available to use in your project. Check the license for songs you are interested in reusing. They are all CC0, CC BY, or CC BY-SA.